🏷️ Basic Information Identification Make: BMW Model: 7 Series Chassis Code: E32 Year: 1988 Specific Models Covered: 735i, 735iL, 750iL 👋 Introduction Market Position Target Audience: Professional automotive technicians, BMW specialists, and advanced DIY mechanics working on E32 7 Series vehicles. Competitive Analysis Value Proposition: Provides specialized, in-depth troubleshooting for the complex electronic systems of the 1988 BMW 7 Series, addressing common and uncommon electronic faults. Key Features Diagnostic Focus: Emphasis on systematic diagnosis of electronic issues, which were becoming increasingly sophisticated in luxury vehicles of this era. Technical Accuracy: Leverages BMW's technical documentation standards for the period, ensuring accuracy for repairs and diagnostics. 📋 Manual Details Coverage Areas Manual Type: Electronic Troubleshooting Manual Language: English Format: Likely Digital (e.g., PDF, e-book). Specific format not explicitly stated, but 'Electronic' implies digital distribution. Page Count Estimated Page Count: Specific page count not provided. However, electronic troubleshooting manuals for this era are typically substantial, often exceeding 300-500 pages. 📖 Manual Coverage Systems Covered Primary Focus: Electronic Systems and Troubleshooting Engine Management Electronics: Diagnosis and troubleshooting of engine control unit (ECU) functions, sensors, actuators, and associated wiring for M30 engines. Ignition System Electronics: Troubleshooting electronic ignition control, coil packs, and related components. Fuel Injection Electronics: Diagnosis of electronic fuel injection (EFI) system components, including injectors, fuel pumps, and control modules. Transmission Control Electronics: Troubleshooting electronic control unit (ECU) and sensors for automatic transmissions. Chassis Electronics: Diagnosis of ABS (Anti-lock Braking System), ASC (Automatic Stability Control - if applicable to 1988 models), and other chassis-related electronic modules. Body Electronics: Troubleshooting electronic components within the body, such as central locking, power windows, mirrors, and climate control systems. Instrument Cluster Electronics: Diagnosis of dashboard warning lights, gauges, and electronic displays. Lighting Electronics: Troubleshooting headlight, taillight, and interior lighting control modules and wiring. Diagnostic Interfaces: Information on diagnostic connectors, fault codes, and basic diagnostic procedures available for the era. Procedures Included Troubleshooting Methodology: Step-by-step diagnostic routines and logical troubleshooting trees. Wiring Diagrams: Detailed electrical schematics for various systems. Component Testing: Procedures for testing sensors, actuators, and electronic modules using multimeters and oscilloscopes. Fault Code Interpretation: Explanation of diagnostic trouble codes (DTCs) and their meanings. Component Replacement: Guidance on replacing electronic components, including necessary precautions. Connector Pinouts: Detailed pin assignments for various electrical connectors. Technical Depth Depth Of Coverage: Advanced diagnostics focusing on electronic systems, suitable for professional technicians and advanced DIY enthusiasts. Diagnostic Tools Required: Implies the use of standard automotive diagnostic tools such as multimeters, oscilloscopes, and potentially basic scan tools of the era. 📊 Manual Specifications File Format Digital Format Type: Likely PDF or similar document format, potentially with search functionality. Print Quality Print Quality Suitability: Designed for digital viewing. If printed, quality would depend on the user's printer. Binding Type Binding Type For Digital: N/A (Digital format) Paper Type Paper Type For Digital: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Code 735I 735Il: M30B35 Engine Type 735I 735Il: 3.5L (3430cc) Inline 6-cylinder, SOHC, 12-valve Engine Code 750Il: M70B50 Engine Type 750Il: 5.0L (4988cc) V12, SOHC, 24-valve Performance Horsepower 735I 735Il: Approx. 208 hp @ 5700 rpm (DIN) Torque 735I 735Il: Approx. 224 lb-ft @ 4000 rpm (DIN) Horsepower 750Il: Approx. 296 hp @ 5200 rpm (DIN) Torque 750Il: Approx. 332 lb-ft @ 3900 rpm (DIN) Fuel System Fuel Delivery 735I 735Il: Bosch Motronic electronic fuel injection (EFI) Fuel Delivery 750Il: Dual Bosch Motronic M1.2 or M1.3 electronic fuel injection (EFI) systems (one per bank) Fuel Type: Premium Unleaded Gasoline (91+ Octane) 🔧 Transmission Standard Transmission Type 735I: 4-speed Automatic (Getrag 4HP22) or 5-speed Manual Transmission Type 735Il: 4-speed Automatic (Getrag 4HP22) Transmission Type 750Il: 4-speed Automatic (Getrag 4HP22 EH) Optional Manual Transmission Availability: Available on 735i, less common. Features Sport Mode Automatic: Some automatic transmissions featured a 'Sport' mode for enhanced performance characteristics. Electronic Control Automatic: The 4HP22 EH transmission in the 750iL featured electronic control for smoother shifting and efficiency. 📐 Dimensions Exterior Length 735I: Approx. 5014 mm (197.4 in) Length 735Il 750Il: Approx. 5114 mm (201.3 in) Wheelbase 735I: Approx. 2830 mm (111.4 in) Wheelbase 735Il 750Il: Approx. 2904 mm (114.3 in) Width: Approx. 1800 mm (70.9 in) Height: Approx. 1400 mm (55.1 in) Weights Curb Weight 735I: Approx. 1700-1800 kg (3748-3968 lbs) Curb Weight 735Il: Approx. 1800-1900 kg (3968-4189 lbs) Curb Weight 750Il: Approx. 1950-2050 kg (4300-4520 lbs) 🛡️ Safety Features Ratings Safety Ratings Era: Safety standards and testing protocols were less standardized than today. Specific NCAP ratings for this era are generally unavailable or not directly comparable. Active Features ABS: Anti-lock Braking System (ABS) was standard on most models or widely available as an option. Asc: Automatic Stability Control (ASC) or ASC+T (with Traction Control) became available on later E32 models, potentially including late 1988 production. Passive Features Airbags: Driver's side airbag was introduced as an option or...